Notes Payable and Long-Term Obligations Long-Term Debt Outstanding - Narrative (Details) (USD $) In Millions, unless otherwise specified	Oct. 31, 2014
Term Loan Facility
Debt Instrument [Line Items]
Current portion of unamortized discount	$ 0.5
Long-term debt, original issue discount	2.0
Non-current portion of unamortized discount	1.3
Oaktree Notes
Debt Instrument [Line Items]
Current portion of unamortized discount	1.2
Long-term debt, original issue discount	5.2
Non-current portion of unamortized discount	3.3
Call premium - Oaktree Senior Notes
Debt Instrument [Line Items]
Contra liability capitalize prepayment penalty amount	3.6
Current portion of unamortized creditor fees	0.8
Non-current portion of unamortized creditor fees	$ 2.3